First Look | 2015 KTM SX Model Line

First Look | 2015 KTM SX Model Line

Year after year KTM competes in the most prestigious Motocross and Supercross championship events worldwide. The Austrian manufacturer, whose roots revolve around racing, demonstrates its defiance and strength with the best and most efficient technological advancements that are tested in the toughest conditions. The goal has always been to bring the best to its production motorcycles that roll off the assembly lines in Mattighofen. For 2015, the model range includes a wide range of engines and displacements from the powerful yet lightweight two-strokes, to the all-conquering ability of the four-strokes with a vast array of updates to further improve these already well-refined machines.

Chassis

NEW FOR 2015
• New machined cross tube in the frame that provides a stronger more accurate connection of the frame and the linage due to an improved production process resulting in a 60 gram weight reduction. The frame is now powder-coated in KTM Factory orange
• New linkage geometry with an improved rising rate, better control, stability and balance
• For the linkage there is now an improved production process for higher quality resulting in a 40 gram weight reduction
• New WP 4CS fork specifically designed for Motocross
• New fork lugs with a 22mm front axle for reduced weight and better feel along with a 2mm reduced off-set for improved handling
• New fork protectors with an open design, which are easier to replace for better maintenance and cleaning of the fork leg
• New monoshock setting, which has been re-valved and set-up to match the new linkage and fork. The shock features a 4mm increase of shaft travel while maintaining the same amount of wheel travel with the new linkage package
• New Dunlop GEOMAX MX52 tires for excellent traction in all conditions
• New aluminum o-ring support for the lower bearing on the steering stem for a weight saving of 22 grams and a new steering stem bolt, which is also 8 grams lighter
• New high-quality black colored Excel rims for aggressive looks and top performance
• New softer two-compound grips

Frame
(NEW)

The improved, modern and lightweight frame design manufactured by WP Performance Systems is made from lightweight, high-strength chromoly steel sections. The design for MY 2015 now has a new machined cross tube that unites the two sides of the frame and connects the linkage rods to the frame. This provides exact production tolerances and consistent chassis characteristics thanks to the absence of welding. It is also lighter (58 grams) than the previous cross tube design.

Swingarm

Created using the latest in calculation and simulation software, the design and wall thickness of the cast aluminum swingarm has been refined for minimum weight at optimum stiffness. Precisely defined flexibility provides perfect stability, which gives excellent traction, stability and comfort.

Rear suspension
(NEW)

The new fully adjustable rear monoshock by WP Suspension has been re-valved and set-up to match the new linkage geometry and characteristics. A 4mm longer stroke allows the same amount of wheel travel thanks to the new linkage design.

Linkage
(NEW)

The suspension package features a new linkage with revised geometry due to the development and testing done by the Red Bull KTM Factory Team along with the US R&D department. These revisions provided an optimized rising rate that utilizes a higher starting rate to achieve a flatter, less progressive curve for better control. The innovative production process of the triangle and pull-rod saves 40 grams of weight while improving the quality of the component.

Front suspension
(NEW)

For the United States, the SX model range features the WP 4CS fork. The completely new four chamber fork has been specifically designed and tested for motocross. The advanced 4CS fork offers improved damping, is lighter than previous models and can be adjusted easily for compression and rebound via the dials on the top of the fork tubes.

Front Axle
(NEW)

The front axle has been reduced in size from 26mm to 22mm to reduce weight and offer a better front-end feel. Also with the smaller axle it was possible to move it back 2mm in the axle clamp. The adjusted offset and increased trail provides more stability.

Front fork protectors
(NEW)

The fork protectors have been revised for MY 2015 to fit to the new axle clamps, and are also lighter. They allow easier access to the fork legs for quicker cleaning and faster maintenance.

Triple clamps

Top quality CNC machined triple clamps have been something of a KTM trademark for years. Offering a precise handling with top quality performance, they particularly support the flex characteristics, and with it, the forks’ action. The o-ring support for the lower bearing on the steering stem has been revised and is now made of aluminum to save 22grams, while the steering stem bolt is now also 8grams lighter.

Bodywork and graphics

In shaping the bodywork the KTM designers’ ergonomic and design focus was to achieve complete harmony between rider and bike, right down to the finest details. The front fender is a prime example of a molded polymer component, gaining maximum stability through a well thought-out structure and mounting system. For MY 2015 the bodywork will be decorated with updated graphics to highlight the racing character of the MY 2015 SX range of cutting-edge motocross bikes.

Airbox

The airbox design offers maximum protection of the air filter against dirt, while providing maximum airflow for high performance. The TwinAir filter can be changed without tools in seconds, which is a standard feature by KTM for fast and efficient maintenance.

Wheels
(NEW)

The wheel rims are now colored in black for aggressive looks and use lightweight, CNC machined hubs, high-end Excel rims and spokes with lightweight aluminium nipples to achieve maximum stability at minimum weight. The wheels are fitted with the latest MX tires from Dunlop, the Geomax MX52, which have been developed with the RedBull KTM Factory Racing team and the US R&D department. The tires guarantee excellent traction and outstanding performance.

Sprocket
(NEW)

The new sprocket design is 50grams lighter and contributes to the overall refining of the MY 2015 KTM motocross range.

Handlebars

All SX models are fitted with the super-strong, tapered Renthal Fatbar 827, with a bend that is specifically suited to the requirements of motocross while boasting superior quality and performance. The proven standard KTM mount allows the handlebar to be mounted in four different positions. A large Renthal bar pad offers effective protection for the rider.

Hand grips
(NEW)

New, softer two-compound grips are used on MY 2015 motocross models for increased comfort and less stress on the rider’s hands in every situation.

Exhaust

Brakes

High-Tech Brembo brakes have always been standard equipment on KTM off-road bikes, and combined with the lightweight Galfer Wave discs, they are the ultimate solution in braking technology. Being the class-leading brakes in motocross, they remain unchanged for MY 2015.

250 SX-F

The 250 SX-F is once again a World Championship winner in MX2 and adds a prestigious AMA Supercross Lites Championship in 2013 and 2014 to its amazing trophy cabinet. The 2013 season was a great success in racing at all levels around the globe. The performance combination of a powerful and lively engine in a lightweight and agile chassis is sure to make the 250 SX-F the star of the show for yet another year.

Revisions of the engine for MY 2015 include a lighter clutch basket and new clutch springs for a more consistent behavior under stress and over time as part of the CSS (coil spring steel) one-piece clutch system. The clutch continues to use the Brembo hydraulic system for light operation and controllable modulation. Within the proven DOHC engine are also new O-rings on the oil pump suction screen for increased durability, and MY 2015 continues to use the Keihin Engine Management system with electronic fuel injection and a 44mm throttle body, a quality wire harness, lightweight gearbox, and electric starter.

– Compact DOHC engine with two overhead camshafts & DLC coated followers
– Titanium valves (intake 32.5mm, exhaust 26.5mm)
– RPM limit 14,000rpm
– Flow optimized ports
– Forged box-type piston for a low oscillating mass
– A crankshaft that employs a plain big end bearing for longer service intervals
– NEW O-rings on the oil pump suction screen for increased durability
– Multifunctional counter balance shaft, which drives the water pump and timing chain for reduced vibrations
– An electric starter as standard, a clear advantage in the heat of the battle
– Lightweight and compact CSS clutch (coil spring steel) with eight clutch plates and a wear free steel basket
– NEW clutch basket with a weight saving design
– NEW clutch springs for more consistent behavior under stress and over time
– Lightweight five-speed gearbox for precise & easy shifting adapted for the 250 SX-F
– Engine management system for a spontaneous throttle response & the possibility to change characteristics or read engine data with the available to purchase User-Setting-Tool

350 SX-F

The 350 SX-F never ceases to amaze! In 2013, this exciting machine won another MX1 World Championship in convincing fashion, and dominated the Motocross of Nations. Antonio Cairoli masterfully defeated the competition on-board the 350 SX-F thanks to the combination of its low weight, playful agility and a high-revving engine. It enjoys all of the very best characteristics in a package suited to amateurs and pros alike.

The bike features a DOHC engine with lightweight titanium valves and DLC coated followers for a spontaneous power delivery that can rival any 450 on the track, along with a crankshaft that has been designed to increase service intervals. New O-rings increase durability on the oil pump suction screen, and the bike continues its advantage with having an electric starter. A new lighter clutch basket with new clutch springs compliments the CSS clutch with the Brembo hydraulic system for easy and precise control of a 250-agile bike with the power that can match a 450.

– DOHC Cylinder head with ultra lightweight titanium valves and DLC coated followers for a spontaneous power delivery and 450-rivalling maximum power
– A crankshaft that employs a plain big end bearing and force-fitted bearing shells for longer service intervals
– NEW O-rings on the oil pump suction screen for increased durability
– Multifunctional counter balance shaft, which drives the water pump and timing chain for reduced vibrations
– Electric starter as standard, a clear advantage in the heat of the battle
– CSS clutch (coil spring steel) eight clutch plates and a wear free steel basket
– NEW clutch basket with a weight saving design
– Lightweight five-speed gearbox for precise, easy shifting adapted for the 350 SX-F
– Engine management system for a spontaneous throttle response and the possibility to change characteristics or read engine data with the available to purchase User-Setting-Tool

450 SX-F

The 450 SX-F has proven itself in the main championships around the world. It is the weapon of choice for the Red Bull KTM Factory Race team in the AMA championships thanks to its compact SOHC engine that delivers explosive but controllable power, combined with an agile and stable chassis.

– A compact 60hp power pack with a single overhead camshaft and the latest electronic fuel injection, which offers class-leading performance
– A single overhead camshaft controls four ultra-lightweight titanium valves via extremely rigid rocker arms, which are DLC coated on the intake side
– Engine speeds of up to 11500rpm and a three-layer head gasket for durability under the most extreme conditions
– Bore of 95.0mm with a lightweight box-in-box type piston for low engine vibrations
– A crankshaft that employs a plain big end bearing and force-fitted bearing shells for longer service intervals
– A side mounted counter balance shaft that also drives the water pump
– Electric starter as standard, a clear advantage in the heat of the battle
– The DDS clutch with Brembo hydraulic system is a compact design that integrates internal damping system
– Lightweight five-speed gearbox for effortless shifting
– NEW O-rings on the oil pump suction screen for increased durability
– Engine management system for a spontaneous throttle response & possibility to change characteristics or read engine data with the available to purchase User-Setting-Tool